Rolls for rolling suspension-rails



(No Model.)

' J. THOMAS. ROLLS FOR R ING SUSPENSION RAILS.

' No. 560,949. 1 Patented May 26, 1896.

OLL

UNITED STATES PATENT QFFICE.

JOHN T. THOMAS, OF CHICAGO, ILLINOIS, ASSIGNOR TO JOSEPH E. PORTER, OFOTTAVA, ILLINOIS.

ROLLS FOR ROLLING SUSPENSION-RAILS.

SPECIFICATION forming part of Letters Patent No. 560,949, dated May 26,1896.

Application filed September 19, 1894:. Serial No. 523,504:- (No model.)

To aZZ whom it may concern.-

Be it known that I, JOHN WV. THOMAS, of Chicago, in the county of Cook,State of Illinois, have invented new and useful Improvements in Rollsfor Rolling Suspension-Rails Having Upper and Lower Heads andIntermediate Flanges, of which the following, in connection with theaccompanying drawings, is a full, clear, and exact description.

In the accompanying drawings, Figure l is a broken front elevationshowing a set of rolls of arolling-mill adapted for rolling arail having upper andlower heads, a vertical web, and intermediate flanges. Figs.2 to 7 illustrate in cross-section the different forms to which a billetof metal is rolled up to the completion of the rail, and Fig. 8 is anend view of the rail in the upright position in which it is used.

My invention consists in the novel construction and combination of a setof grooved rolls, three in the set, the grooves being shaped andconstructed in the respective rolls in the novel manner hereinafterdescribed, so as to produce successive changes in the form of a billetof iron or steel and finally produce the type of rail patented to JosephE. Porter De cember 13, 1892, No. 487,966, which type of rail has anupper head, a lower head, vertical connecting-web, and broad horizontalflanges midway between the two heads for the wheels of a hay-carrier torun upon. A rail of the type mentioned requires the rolls of thepeculiar construction that I have invented for rolling it on account ofits having two narrow heads and two thin and broad intermediatehorizontal flanges, all connected by a vertical web.

In the drawings, A, B, and O designate three rolls with journals andadapted to be arranged in suitable standards or housings (not shown) ofa rolling-mill, the rolls being set one above another. The middle roll Ais provided with ordinary preliminary reducing passes or grooves a Z)and special shaping grooves or passes c c c d and f f f as shown. Thetop rail B is provided with an ordinary preliminary groove or pass g andspecial shapinggrooves h h 71 and m m m and the bottom roll 0 with anordinary preliminary reducing-groove n and a special shaping-groove n.

The rolls Aand B have their grooves a and g shaped as shown, and theyare adapted by a flatwise pass 1 for reducing a billet D of metal fromthe shape shown in Fig. 2 to the form of the partly-rolled bar 1. (Shownin Fig. 3.) The rolls A and C have their grooves b and n shaped'as shownand are adapted by a flatwise pass 2 for reducing the partly-rolled barshown in Fig. 3 to th e form of the partly-rolled bar 2'. (Shown in Fig.4:.) The rolls A and B have their grooves o c o and h h h shaped asshown and are adapted by an edgewise pass 3 for shaping thepartly-rolled bar 2 to the form ofthe partly-rolled bar 3. Fig. 5.) Therolls A and C have their grooves d and n shaped as shown and adapted bya flatwise pass l for reducing the partly-rolled bar shown in Fig. 5 tothe form of the partly-rolled bar 4'. of the bar the heads which havebeen formed upon it are adjusted to a vertical position and the flangesto a horizontal position, and during the operation the web of thepartly-rolled rail is shortened andthe horizontal flanges thinned 7 5 ona taper, the crowded metal occupying, or nearly so, the spaces betweenthe heads and flanges, as illustrated, and the rolls A and B have theirgrooves f f f and m m m shaped as shown and adapted by an edgewise pass5 for reducing the partly-rolled rail 4 (shown in Fig. 6) to the form ofthe finished rail 5. (Shown in Figs. 7 and 8.) In this last pass of thebar the heads and web are adjusted in the same position as when passedthrough the grooves c c c and h h 7L2, and the product is a railcorresponding in cross-section to Figs. 7 and 8. It will be observedthat the flanges and web of the partly-rolled rail 3" (shown in Fig. 5)are of nearly corresponding 0 thickness and that the flanges areslightly tapered, which latter is also the case in Fig. 4:; that theflanges of the partly-rolled rail shown in Fig. 6 are thinned on agreater taper outward from the web, and the web is shortened,

this resulting from the metal between the heads and flanges, which iscrowded downward, inward, and upward in this pass, having freedom togradually spread in the spaces between the heads and flanges of the barand too in doing so give increased thickness, as represented in Fig. 6,to the web below the head.

(Shown in 65 (Shown in Fig. 6.) In this latter pass 70 In this pass theflanges are finished, being thinned and tapered outward. In Figs. 7 and8 is shown the manner in which the web is thinned relative to the webshown in Figs. 5 and 6, this latter shape of the web being imparted tothe bar in the last pass.

The operation of rolling is as follows: The billet D, Fig. 2, isinserted flatwise in preliminary pass 1, Fig. 1, forming shape 1, Fig.3. It is then inserted flatwise in pass 2, Fig. 1, slightly tapering thewheel-supporting intermediate flanges and forming shape 2, Fig. 4. It isthen inserted edgewise in preliminary pass 3, Fig. 1, forming thehorizontal heads and the web, making shape 3, Fig. 5, grooves c h beingwide enough to allow the thickest parts or roots of the flanges to pass,so that no action to change the taper of the flanges takes place in saidpass 3. It is then inserted flatwise in pass I, Fig. 1, finishing thetaper of the flanges and depressing the heads, making shape 4, Fig. (3,dotted lines showing the shape of rail in pass. It is then insertedhorizontally in pass 5, Fig. 1, finishing the head and web and makingrail complete, as shown in shape 5, Fig. 7, grooves f m in pass 5 beingwide enough to admit the thickest parts or roots of the flanges withoutchanging the form of the flanges. The grooves marked 0 71/ and f m arenot tapered, the flanges being tapered entirely in lower passes 52 andat.

The great object sought in rolling the rail (shown in Figs. 7 and 8) isto have the web, heads, and flanges form right angles as nearly aspracticable where they unite and to have the flanges broad and the webas short as possible, so that the heads, respectively, shall have anearlyhorizontal under and upper surface beyond the web and thus providea suitable means for connecting suspending hooks of hay carrier tracksand also a suitable means for clampinga knocker-block upon the underhead aflorded, as is now commonly done with hay-carrier rails of thePorter type.

The rolls herein described have been practically employed in rolling therail herein de scribed and shown and found successful, they turning outrails weighing only about two pounds to the foot, which are stiff andstrong and perfectly adapted for forming suspended hay-carrier tracks.

The rolls, by slightly changing the size of the grooves, will producerails of a greater or less weight, and the product will answer [or otherpurposes than hay-carrier tracks.

I claim- 1. A set of rolls for rolling side-bearin g suspension-rails,having flat passes for preliminarily reducing a billet to a cross-shapedform having side flanges, an edge-pass for further developing said formand for producing a lateral projection at each edge of the vertical webportion thereof, a flat pass provided with grooves for reducing byendwise compression the cross-shaped form and thereby thickening theweb, and with side grooves for further reducing the flanges, and a passfor rolling out the thickened web and finishing the rail, substantiallyas and for the purpose specified.

A set of rolls for rolling side-bearing suspension-rails having passes 1and 2 for redueing a billet to a cross-shaped form having a thickenedvertical web and tapering side flanges, a pass 3 for rolling outflatwisc the thickened web and producing a lateral projection on eachedge thereof, a pass 4 having grooves for vertically compressing andthickening the web and for further reducing and tapering the sideflanges, and a pass 5 for reducing the rail to its finished form,substan tially as and for the purpose specified.

3. A set of rolls for rolling a rail of the type herein described, saidrolls having flat passes for preliminarily reducing a billet to acrossshaped form, to wit: with a vertical web and intermediatehorizontal side flanges; an edge pass for further developing said formand producing upon the billet laterally-extending projections or heads,the same being on the edges of the vertical web portion thereof, and oneor more passes for finishing the rail.

4. In a set of rolls for rolling the type of rail herein described, thecombination of a roll A having ordinary preliminary reducinggrooves, andspecial grooves c, c, 0 d, f, f, f a roll 13 having an ordinarypreliminary reducing-groove and provided with the special grooves 7b, h,7L2, m, 112, m and a r0110 having an ordinary prelilninaryreducing-groove and the special groove n; whereby the billet of metalafter passing flatwise, twice, through the preliminary reducing-groovesis brought by an ed gewise pass to the form 3, and then by a flatwisepass, to the form 4-, and finally by an edgewise pass to the form 5,substantially as described.

I11 testimony whereof I hereunto aflix my signature in the presence oftwo witnesses.

Witnesses:

PRESTON T. LANGE, WM. M. ADAMS.

